Agilent Technologies 66332A Service Manual
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Agilent Technologies 66332A Service Manual

Dynamic measurement dc source system dc power supply
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Download this manual See also: Programming Manual, User Manual
Service Manual
Agilent Model 66332A
Dynamic Measurement DC Source
and Agilent Model 6632B, 6633B, 6634B
System DC Power Supply
s1
Agilent Part No. 5962-8119
Printed in Malaysia
Microfiche No 6962-8120
October, 2003

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Summary of Contents for Agilent Technologies 66332A

  • Page 1 Service Manual Agilent Model 66332A Dynamic Measurement DC Source and Agilent Model 6632B, 6633B, 6634B System DC Power Supply Agilent Part No. 5962-8119 Printed in Malaysia Microfiche No 6962-8120 October, 2003...

  • Page 2: Warranty Information

    If Agilent Technologies is unable, within a reasonable time to repair or replace any product to condition as warranted, the Customer shall be entitled to a refund of the purchase price upon return of the product to Agilent Technologies. LIMITATION OF WARRANTY...

  • Page 3: Safety Summary

    Because of the danger of introducing additional hazards, do not install substitute parts or perform any unauthorized modification to the instrument. Return the instrument to an Agilent Technologies Sales and Service Office for service and repair to ensure that safety features are maintained.
  • Page 4 Safety Symbol Definitions Symbol Description Direct current Alternating current Both direct and alternating current Three-phase alternating current Earth (ground) terminal Protective earth (ground) terminal Frame or chassis terminal Terminal is at earth potential (Used for measurement and control circuits designed to be operated with one terminal at earth potential.) Terminal for Neutral conductor on permanently installed equipment Terminal for Line conductor on permanently installed equipment...

  • Page 5: Notice

    Agilent Technologies shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of this material.

  • Page 6: Table Of Contents

    Table of Contents Warranty Information Safety Summary Notice Printing History Instrument Identification Table of Contents INTRODUCTION Organization Safety Considerations Related Documents Revisions Manual Revisions Firmware Revisions Electrostatic Discharge VERIFICATION AND PERFORMANCE TESTS Introduction Test Equipment Required Measurement Techniques Setup for Most Tests Electronic Load Current-Monitoring Resistor Operation Verification Tests...
  • Page 7 Power-on Self-test Failures CV/CC Status Annunciators Troubleshooting Bias and Reference Supplies J307 Voltage Measurements Manual Fan Speed Control Disabling Protection Features Post-repair Calibration Inhibit Calibration Switch Calibration Password Initialization ROM Upgrade Identifying the Firmware Upgrade Procedure Disassembly Procedures List of Required Tools Cover, Removal and Replacement A2 Interface Board, Removal and Replacement Front Panel Assembly, Removal and Replacement...

  • Page 9: Introduction

    This manual contains information for troubleshooting and repairing to the component level the Agilent Model 66332A Dynamic Measurement DC Source and the Agilent Model 6632B, 6633B, 6634B System DC Power Supplies. Hereafter all models will be referred to as the dc power supply.

  • Page 10: Revisions

    Working at a static-free station such as a table covered with static-dissipative laminate or with a conductive table mat (Agilent P/N 9300-0797, or equivalent). — Using a conductive wrist strap, such as Agilent P/N 9300-0969 or 9300-0970. — Grounding all metal equipment at the station to a single common ground.

  • Page 11: Verification And Performance Tests

    DC Power Supply 5 V, 10 A Agilent 6642A, 6653A Digital Voltmeter Resolution: 10 nV @ 1V Agilent 3458A or equivalent Readout: 8 1/2 digits Accuracy: 20 ppm Electronic Load 20 V, 5 A minimum, with transient capability Agilent 6060B or equivalent...

  • Page 12: Measurement Techniques

    2 - Verification and Performance Tests Resistor 1 ohm, 50 W Ohmite L50J1R0 (substitute for electronic 3 ohm, 100 W (Agilent 66332A/6632B) Ohmite RLS5R0 (adjustable) load if load is too noisy 24 ohm, 100 W (Agilent 6633B) Ohmite RLS25R (adjustable)

  • Page 13: Electronic Load

    Verification and Performance Tests - 2 Electronic Load Many of the test procedures require the use of a variable load capable of dissipating the required power. If a variable resistor is used, switches should be used to either; connect, disconnect, or short the load resistor. For most tests, an electronic load can be used.

  • Page 14: Constant Voltage (Cv) Tests

    Table 2-2. Programming Ratings Model Voltage Rating Full Scale Rating Current Rating Full Scale Rating Agilent 20 V 20.020 V 5.0045 A 66332A/6632B 50 V 50.045 V 2.002 A Agilent 6633B 100 V 100.1 V 1.001 A Agilent 6634B Constant Voltage (CV) Tests...

  • Page 15: Cv Source Effect

    Verification and Performance Tests - 2 Open the load and again record the DVM voltage reading. The difference between the DVM readings in steps (d) and (e) is the load effect voltage, and should not exceed the value listed in the performance test record chart for the appropriate model under CV LOAD EFFECT.

  • Page 16: Transient Recovery Time

    CC PROGRAMMING @ 0 AMPS. d. Set the current readback range to High and program the output current to 20mA. For model 66332A, set the current detect mode to “DC”. Repeat step C to get the Iout. Record the current reading on the front panel display.

  • Page 17: Current Sink (Cc-) Operation

    An example of how to do this is given below using an Agilent 3458A System Voltmeter programmed from the front panel. Set up the voltmeter and execute the "Average Reading" program follows: Program 10 power line cycles per sample by pressing NPLC 1 0 ENTER .

  • Page 18: Cc Load Effect

    2 - Verification and Performance Tests Set up voltmeter to take measurements in the statistical mode as follows: Press Shift key, f0, Shift key, N Press ^ (up arrow) until MATH function is selected, then press >. Press ^ (up arrow until STAT function is selected then press (ENTER). Set up voltmeter to read the average of the measurements as follows: Press Shift key, f1, Shift key, N.

  • Page 19: Cc Noise (Pard)

    Verification and Performance Tests - 2 CC Noise (PARD) Periodic and random deviations (PARD) in the output combine to produce a residual ac current, as well, as an ac voltage superimposed on the dc output. Constant current (CC) PARD is specified as the rms output current in a frequency range 20 Hz to 20 Mhz with the supply in CC operation.

  • Page 20: Performance Test Record Form

    2 - Verification and Performance Tests Performance Test Record Forms Model Agilent 66332A OR Agilent6632B Report No _______________ Date __________________ Test Description Minimum Results* Maximum Specs. Specs. Constant Voltage Tests Voltage Programming and Readback Low Voltage (0V) Vout 10 mV...
  • Page 21 Verification and Performance Tests - 2 Model Agilent 6633B Report No _______________ Date __________________ Test Description Minimum Results* Maximum Specs. Specs. Constant Voltage Tests Voltage Programming and Readback Low Voltage (0V) Vout 20 mV __________ + 20 mV Front Panel Display Readback...
  • Page 22 2 - Verification and Performance Tests Model Agilent 6634B Report No _______________ Date __________________ Test Description Minimum Results* Maximum Specs. Specs. Constant Voltage Tests Voltage Programming and Readback − 50 mV Low Voltage (0V) Vout __________ + 50 mV Vout − 12 mV...

  • Page 23: Troubleshooting

    Troubleshooting Introduction WARNING: SHOCK HAZARD. Most of the troubleshooting procedures given in this chapter are performed with power applied and protective covers removed. Such maintenance should be performed only by service trained personnel who are aware of the hazards (for example, fire and electrical shock). CAUTION: This instrument uses components which can either be damaged or suffer serious performance degradation as a result of ESD (electrostatic discharge).

  • Page 24: Test Equipment Required

    GPIB Controller To communicate with the supply via the HP Series 300 GPIB interface Digital Voltmeter To check various voltage levels Agilent 3458A Oscilloscope To check waveforms and signal levels Agilent 54504A/54111A Electronic Load To test operation of current circuit...
  • Page 25 Troubleshooting - 3 Turn on unit and observe the display. Unit should display all of the segments and annunciators, the address and then after self test display either an error message or go to the metering mode. Replace A3 Front +5V @ A3J2-8? A3J2-5 held Display comes...
  • Page 26 3 - Troubleshooting Continued from sheet 1 Program Voltage and Current full scale, enable output with no load. Measure Voltage at output terminals. If output is OK but meter wrong, replace Display and A2. If both are off, Voltage close Output Voltage measured check gain of...
  • Page 27 Troubleshooting - 3 Figure 3-1 Sheet 3. Main Flowchart (continued)
  • Page 28 3 - Troubleshooting Connect a DC coupled scope set to 1mS/20V/ div across the output and turn on the supply while observing the scope for a momentary pulse greater than the supply rating Go to “Troubleshooting Does the supply High Output Voltage” overshoot? (sheet 7) Disable the OV circuit...
  • Page 29 Troubleshooting - 3 Continued from sheet 4 Connect a DC coupled scope across the output and press Protect Clear several times while observing the scope Go to "Troubleshooting Pulses high? High Output Voltage" (sheet 12) A1U306B-2, U306B-8 3.8V? U306B-7 < pin 8? Check U306B, A2 OV_Detect*, High? Check R349, R351,...
  • Page 30 3 - Troubleshooting Program output on, voltage and current full scale then check output voltage FS Prot off and Calibrate unit Output OK? Disable the protection feature by simultaneously pressing the 0 and 9 keys, press the ^ key until the display reads "No Protect Off", press the Up Arrow to display "No Protect On"...
  • Page 31 Troubleshooting - 3 Program full scale voltage and current and enable output. Measure output voltage with an external voltmeter. Check W7 (Vmon) and Display zero V but A2, Interface board output OK? Check for short across CV or CC Displays current output such as output Annunciator on? equal to prog...
  • Page 32 3 - Troubleshooting Continued from sheet 7 Q302 base Check C330, R333, R346, and Q302 Check +Rail and Q303 base >1.2V Output Stage (meas. from +Out) Check Q301, Q305 >1V across R323 circuits Check Q302, Q307, Q307 collector to R324 and R326 emitter Check C331, C333, C339 and Q306...
  • Page 33 Troubleshooting - 3 Continued from sheet 7 Check W7, A2 CV_Prog @ R401 Interface Board -4.7V VMon, Check Voltage Monitor U315B-7 Amplifier, U315B, circuit Check Voltage Control, Circuit U315A Figure 3-1 Sheet 9 No Output Voltage (continued)
  • Page 34 3 - Troubleshooting Continued from sheet 2 Check A2 Interface CC_Prog, R360, Board -4.8V Imon_H, U309A-6 Drop across R473 Check R473 ~+3.5V ~0.25V Check High Range Check Positive Current Current Monitor Control Circuit Amplifier Figure 3-1 Sheet 10. No Current Limit...
  • Page 35 Troubleshooting - 3 Program the output voltage and current to the full scale value and the OV to 1/2. A2 Interface Board or OV_prog ~+2V @ cable W7 defective R350 Check R350, C335 and U306B-8 U306B ~+2V U306B-7 Check R349, R351, ~+4V R356, C336 and U306 U306B-2,...
  • Page 36 Disable the OV capability by shorting R351. After the protection is disabled, program * V_mon should be approximately the output voltage to zero, 6632B or 66332A Vout/4.25 current to full scale and Output 6633B Vout/10.52 ON. If the unit is in "Protect"...

  • Page 37: Specific Troubleshooting Procedures

    Troubleshooting - 3 Specific Troubleshooting Procedures Power-on Self-test Failures The power-on self-test sequence tests most of the digital and DAC circuits. If the supply fails self-test, the display "ERR" annunciator will come on. You can then query the unit to find out what the error(s) are. When an error is detected, the output is not disabled so you can still attempt to program the supply to help troubleshoot the unit.

  • Page 38: Cv/Cc Status Annunciators Troubleshooting

    Measurement (See Figure 6-1) +Rail (Agilent A1 TP 310 - Output +38V 10% (800mV P/P) 6632B/66332B) +Rail (Agilent 6633B) A1 TP 310 - Output +73V 10% (2.5V P/P) +Rail (Agilent 6634B) A1 TP 310 - Output +130V 10% (2.2V P/P)

  • Page 39: J307 Voltage Measurements

    Troubleshooting - 3 J307 Voltage Measurements J307 connects the A1 Main Board Assembly to the A2 Interface Assembly. Table 3-4 provides a quick method of determining if the voltages between these assemblies are within the normal range. If any of these voltages is outside the normal range, refer to the flowcharts to further troubleshoot the circuit associated with the abnormal voltage.

  • Page 40: Manual Fan Speed Control

    3 - Troubleshooting Manual Fan Speed Control Under some circumstances such as testing acoustical devices where the fan noise would interfere with the test, it would be advantageous to reduce the fan speed. If the test requires a very light load, the ambient temperature is low and the duration of the test is short, the fan speed may be temporarily reduced.

  • Page 41: Post-Repair Calibration

    Troubleshooting - 3 Post-repair Calibration Calibration is required annually and whenever certain components are replaced. If components in any of the circuits listed below are replaced, the supply must be re-calibrated as described in Appendix B of the User's Guide. A1 Control Board: Voltage or Current Monitor Amplifier circuits, High Bandwidth Current Amplifier, or Current Monitor resistors R403/R473 A2 Interface Board...

  • Page 42: Initialization

    The computer will display the manufacturer's name, the model number, a "0," and then the firmware revision. Example: "AGILENT TECHNOLOGIES,66332A,0,A.00.01". The revision level of the ROM can also be found on the label affixed to the physical IC chip itself.

  • Page 43: Disassembly Procedures

    Troubleshooting - 3 Disassembly Procedures The following paragraphs provide instructions on how to disassemble various components of the dc power supply. Once disassembled, the components can be reassembled by performing the disassembly instructions in reverse order. Figure 3-2 shows the location of the major components of the unit. Figure 3-2.

  • Page 44: Cover, Removal And Replacement

    3 - Troubleshooting Cover, Removal and Replacement Using a 2TP Pozi screwdriver, unscrew the two screws that hold the carrying straps to the power supply, and then remove the two screws from the opposite side of the case. To remove the cover, first spread the bottom rear of the cover slightly and push from the front panel Slide the cover backward until it clears the rear of the power supply.

  • Page 45: A3 Front Panel Board, Removal And Replacement

    Troubleshooting - 3 S1 Line Switch, Removal and Replacement First remove the front panel assembly as described under “Front Panel Assembly, Removal and Replacement.” Release the switch from the front panel by pressing the locking tabs inward against the body of the switch and pushing the switch out of its opening.

  • Page 46: Line Voltage Wiring

    NOTE: Install the correct fuse when changing the ac line voltage from a previous setting: for 110/120 Vac: 4 AM, Agilent p/n 2110-0055; for 220/230 Vac: 2 AM, Agilent p/n 2110-0002 grey...

  • Page 47: Principles Of Operation

    This section describes the different functional circuits used in the dc power supply models covered in this manual. First, the I/O external signals that connect to the Agilent power supply are described. Next, the overall block diagrams for the dc power supply are described in detail.

  • Page 48: A3 Front Panel Circuits

    4 - Principles of Operation A3 Front Panel Circuits As shown in Figure 4-1, the supply's front panel assembly contains a circuit board, a keypad, a liquid crystal display (LCD), and a rotary control (RPG) for the output voltage and current. With the exception of the RPG (A3G1), the A3 Front Panel board is an assembly-level replaceable part.
  • Page 49 Principles of Operation - 4 Figure 4-1. A2/A3 Block Diagram...

  • Page 50: A1 Main Board Circuits

    4 - Principles of Operation The EEPROM (electrically erasable programmable read-only memory) chip on the A2 interface board stores a variety of data and configuration information. This information includes calibration constants, GPIB address, present programming language, and model-dependent data, such as the minimum and maximum values of voltage and current.
  • Page 51 Principles of Operation - 4 Figure 4-2. A1 Block Diagram...

  • Page 52: Control Circuits

    4 - Principles of Operation Two current shunt resistors monitor the output current. RmHi (R473) monitors the high current range; RmLo (R403) monitors the low current range. Shunt clamps, connected in parallel across RmLo, turn on at approximately 25 mA to limit the voltage drop at high currents.
  • Page 53 Q304 and Q305, which clamp the voltage across RmLo to approximately 1.8 V. A third current readback circuit is available on the Agilent 66332A unit. It consists of a high bandwidth current amplifier that returns dynamic current measurements from the output filter capacitor via the Imon_P signal. Note that the Imon_H and the Imon_P signal are combined to return the actual output current measurement.

  • Page 55: Replaceable Parts List

    Replaceable Parts List Introduction This section lists the replaceable parts for Agilent Models 66332A, 6632B, 6633B, and 6634B power supplies. Refer to Figures 5-1 for the location of mechanical parts with the reference designators MP. Refer to the board location diagrams in Chapter 6 for the location of electrical parts.
  • Page 56 Front Panel Assy, Std unit 5063-3443 Front Panel Assy, Option 020 0370-3238 Knob, 6mm 06612-40001 Keypad 1510-0091 Binding Post, Single, Red 66332A 66332-80001 Nameplate (66332A) 6632B 06632-80019 Nameplate (6632B) 6633B 06633-80002 Nameplate (6633B) 6634B 06634-80002 Nameplate (6634B) 5001-9847 Top Cover...
  • Page 57 Replaceable Parts - 5 Figure 5-1. Mechanical Parts ldentification...
  • Page 58 5 - Replaceable Parts Table 5-3. A1 Control Board PC Board Assembly Designator Model Part Number Description 66332A/6632B 5063-3431 Control PCA, Tested 6633B 06633-61023 Control PCA, Tested 6634B 06634-61023 Control PCA, Tested C300 66332A/6632B 0160-5422 Cap 0.047 uF 20% C301 0160-5422 Cap 0.047 uF 20%...
  • Page 59 0160-4812 Cap 220 pF 5% C372, 373 66332A/6632B 0160-5422 Cap 0.047 uF 20% C374 0160-5422 Cap 0.047 uF 20% C375 66332A/6632B/6633B 0160-5410 Cap 3300 pF 5% C375 6634B 0160-5422 Cap 0.047 uF 20% C376 66332A/6632B 0160-5422 Cap 0.047 uF 20%...
  • Page 60 5 - Replaceable Parts Designator Model Part Number Description C403 66332A/6632B 0160-4791 Cap 10 pF 5% 100V C405 0160-3454 Cap 220 pF 1KV C411 6633B/6634B 0160-7277 Cap 2.2 uF C420 6633B/6634B 0160-6800 Cap 0.022 uF 20% C421 6633B/6634B 0160-6800 Cap 0.022 uF 20%...
  • Page 61 Diode D325 1901-0050 Diode D326 1901-0033 Diode D327, 328 1901-0050 Diode D329 1901-0033 Diode D330 66332A/6632B/6633B 1901-0987 Power Diode (See CR342) D335 66332A/6632B 1902-0953 Zener Diode 6.2V 5% D336, 337 1901-0880 Diode D400 6634B 1901-0719 Diode, Power D470, 471 1902-0960...
  • Page 62 Designator Model Part Number Description Q300 5060-3245 Darlington Fan Driver Assembly 1854-0828 ref Q300 Transistor,NPN SI 1205-0282 ref Q300 Heat Sink Q301 66332A/6632B/6633B 1854-0474 Transistor, NPN Q301 6634B 1854-0575 Transistor, NPN Q302 66332A/6632B/6633B 1854-0474 Transistor, NPN Q302 6634B 1854-0575 Transistor, NPN...
  • Page 63 Q317 6633B/6634B 1853-0772 Transistor, PNP Q318 1858-0074 Transistor Array Q319 66332A/6632B 1853-0656 Transistor, PNP R300 66332A/6632B/6633B 0698-3642 Res 3K 5% 2W MO R300 6634B 0764-0046 Res 33K 5% 2W MO R301 66332A/6632B 0757-0403 Res 121 Ohm 1% 0.125W R301 6633B 0757-0416 Res 511 1% 0.125W...
  • Page 64 Res 8.25K 1% R334 66332A/6632B 8159-0005 Jumper R335 0757-0438 Res 5.11K 1% R336 0757-0280 Res 1K 1% 0.125W R337 66332A/6632B/6633B 0698-3444 Res 316 Ohm 1% 0.125W R337 6634B 0757-0420 Res 750 1% 0.125W R339 66332A/6632B 0757-0442 Res 10K 1% 0.125W R339 6633B 0757-0458 Res 51.1k 1% 0.125W...
  • Page 65 Replaceable Parts - 5 Designator Model Part Number Description R351 66332A/6632B 0698-6320 Res 5K 0.1% R351 6633B 0698-5087 Res 6.2K 1% R351 6634B 0698-6320 Res 5K 1% R352 66332A/6632B 8159-0005 Jumper R353 0698-8959 Res 619K 1% R354 66332A/6632B 0757-0447 Res 16.2K 1%...
  • Page 66 R390, 391 0698-8834 Res 9K 0.1% 0.125W R392 66332A/6632B 0698-6320 Res 5K 0.1% R392 6633B/6634B 0698-6348 Res 3K 0.1% 0.125W R393 66332A/6632B/6633B 0698-6360 Res 10K 0.1% R393 6634B 0698-8865 Res 4.45K 0.1% 0.1W R394 66332A/6632B 0698-6358 Res 100K 0.1% R394 6633B 0698-6376 Res 200K 0.1% 0.1W...
  • Page 67 Res 3.3 Ohm 5% 2W R421 6633B 0811-2553 Res 7.5 Ohm 5% 2W PW R422 66332A/6632B 0698-6351 Res 133K 0.1% R423 66332A/6632B/6633B 0699-0267 Res 10K 0.05% R423 6634B 0699-0278 Res 15K 0.05% 0.1W R425 66332A/6632B 0698-4539 Res 402K 1% R427...
  • Page 68 R459 66332A/6632B 8159-0005 Jumper R460 0698-6620 Res 150K 0.1% R461 0757-0395 Res 56.2 Ohm 1% R462 66332A/6632B/6633B 0757-0416 Res 511 Ohm 1% 0.125W R462 6634B 0757-0394 Res 51.1 Ohm 1% 0.125W R463 6634B 0698-3642 Res 3K 2W R464, 465 0698-0084 Res 2.15K 1%...
  • Page 69 Replaceable Parts - 5 Designator Model Part Number Description R497 66332A/6632B 0757-0289 Res 13.3K 1% R497 6633B/6634B 0757-0433 Res 3.32K 0.125W R498 - 500 0757-0407 Res 200 Ohm 1% 0.125W R505 6633B Not Used R510 - 517 66332A/6632B 0811-1672 Res 3.3 Ohm 5% 2W...
  • Page 70 5 - Replaceable Parts A2 Interface PCA, Tested for 66332A 5063-3439 No user replaceable parts A2 Interface PCA, Tested for 6632B/6633B/6634B 5063-3429 No user replaceable parts A3 Front Panel PCA Tested for all models 5063-3432 No user replaceable parts Table 5-4. Binding Post Option #020...

  • Page 71: Diagrams

    Diagrams Introduction This chapter contains drawings and diagrams for troubleshooting and maintaining the Agilent Model 66332A Dynamic Measurement DC Source and the Agilent Model 66332A/6632B/6633B/6634B System DC Power Supplies. Unless otherwise specified in the drawings, a drawing or diagram applies to all models and input voltage options.
  • Page 72 6 - Diagrams Table 6-1. Model-dependent Components (continued) Designator 66332A/ 6633B 6634B Designator 66332A/ 6633B 6634B 6632B 6632B R319 316 Ohm 511 Ohm 750 Ohm R413 R320 1.5K 2.61k R415 22.22K 22.22K R321 80.6K 215k 340k R418 51.1K 160K R323 5.11K...
  • Page 73 Diagrams - 6 Table 6-2. A1 Board Component Locations Ref. Ref. Ref. Ref. Ref. C300 8.125 3.25 C371 5.05 7.65 D323 1.025 R301 5.45 R366 3.925 C301 2.075 0.525 C372 1.875 D324 4.375 R302 6.275 R367 0.675 4.225 C302 1.925 C373 1.875 D325...
  • Page 74 6 - Diagrams Table 6-2 continued Ref. Ref. R434 9.825 R500 2.175 4.325 R435 9.825 R505 0.525 R436 7.05 7.75 R510 R437 7.75 R511 R438 4.675 6.875 R512 6.55 5.45 R439 1.925 8.65 R513 6.55 7.75 R440 R514 R441 5.05 7.125 R515 R442...
  • Page 75 Figure 6-1. A1 Board Component Locations...
  • Page 76 Figure 6-2. A4 and A6 Board Component Locations...
  • Page 77 Figure 6-3. A1 Board schematic (sheet 1)
  • Page 78 Figure 6-3. A1 Board schematic (sheet 2)
  • Page 79 Figure 6-3. A1 Board schematic (sheet 3)
  • Page 80 Figure 6-4. A6 Relay Option Board schematic...

  • Page 81: Index

    Index CV_Detect*, 48, 52 CV_Prog, 50, 52 —+— +OUT, 47 —D— +sense, 47 DAC, 48 disable protection, 40 —A— disassembly - tools, 43 disassembly procedure, 43 A1 board removal, 45 downprogramming, 50, 52 A1 Main board, 50 DP_Control, 50 A2 board removal, 44 A2 Interface Board, 48 A2S201, 50 —E—...

  • Page 82: Bias And Reference Supplies

    Index RS-232, 47 —J— J307 voltages, 39 —S— safety considerations, 9 —L— safety summary, 3 schematic line voltage wiring, 46 A1, 77, 78, 79 A4, 76 —M— schematic notes, 71 SCR, 52 manual revisions, 10 secondary interface, 48 self-test, 37 —N—...
  • Page 83 Manual Updates The following updates have been made to this manual since the original print date. 4/25/03 Information about serial numbers and manual revisions has been updated on pages 5 and 10. Information has been corrected on page 16 and pages 20-22 to comply with ISO 17025. 8/15/03 Information has been corrected on page 16 and pages 20-22 to comply with ISO 17025.

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